Here's the drill. If you have an AMC, a Ford, or a Chrysler distributor with a magnetic pickup, it's really easy to convert to a standard four-pin GM HEI module. We've included a simplified wiring ...

Since an HEI system produces more voltage and amperage output than a points-style distributor, a larger-diameter distributor cap is needed to prevent voltage from cross-firing inside the cap.

If you're swapping points to an HEI distributor to lower maintenance requirements, you're good to go, but will you be able to feel a difference if you do?